Headlights

Bad fuse, bad relay, bad bulb

How do i kniw if the headlight switch is bad? It seems to be working. When i turn it to on, i get the door chime...also, when i flash my high beams, the little blue icon lights up but still no actual lights.

The high beam bulbs i literally just bought. I dont see how they could all go bad at once. What relay should i be looking at on a 2010 f150?

What I do first is to check all the fuses and relays.If they check out o.k. I then will look at the switch.

If everything else checks out the only part left is the headlight switch or a bad wire, which can be checked by a voltmeter prior to switch replacement. May need to get a wiring diagram some site offer downloads for diagrams and other for a small fee. Relay should be in fuse box under hood and you may need a tester to buy a replacement to check if its the issue or not and if not return it. I found one video on the bezel removal at headlight switch but it does not show much nor does it show the removal of the switch. A repair manual would be helpful if needed. I will go ahead and post the url. for the video in-case it may help out. Just copy& paste to new browser window.

https://www.youtube.com/watch?v=UlyanEk5wLw

Thanks so much for all the info. I appreciate that. Fixed it. Was a bad connection and 1 bad prong on the connector. Back in business.....for now

Good Deal.

Rilock can you go into more detail on how you fixed the problem? I’m having the same issue on my truck.